Northern rockfish (Sebastes polyspinis)

Scientific name: Sebastes polyspinis Taranetz & Moiseev, 1933

Northern rockfish (Sebastes polyspinis)

The Northern rockfish (Sebastes polyspinis) is a marine fish of the family Sebastidae.

Biology

Dorsal spines (total): 14; Anal spines: 3. Head spines very weak - nasal spines present, preocular, postocular and parietal spines usually present, supraocular, tympanic, coronal and nuchal spines absent. The only rockfish in the eastern Gulf of Alaska with 14 dorsal fin spines; second anal fin spine as long as the 3rd. Top of head convex between eyes. Dark red with gray mottling and orange flecks; lower edge of pectoral fin white.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Sebastes polyspinis
Family
Sebastidae (Rockfishes, rockcods and thornyheads)
Order
Scorpaeniformes (Scorpionfishes and Flatheads)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
41.0
Depth range
0–740 m (0–2428 ft)
Environment
Marine; demersal; depth range 0 - 740 m
Climate
Temperate
Distribution
North Pacific: eastern Kamchatka to Pervenets Canyon in the Bering Sea and from Stalemate Bank to Graham Island (Queen Charlotte Islands), British Columbia, Canada.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Resilience
Low, minimum population doubling time 4.5 - 14 years (K=0.18; tmax=57)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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